Compression Level How to Read It on a Lab Report
Laboratory reports present Compression Level in a compact format. Knowing what each line means prevents misreading.
Definition reminder
pressure applied to the body by a garment. Working figures for Compression Level normally sit around light 8-15 mmHg, firm 20-30 mmHg in mainstream production. Note RAL-GZ 387 compression classes on the tech pack so nobody tests against an older revision.
Common report layout
The report states method RAL-GZ 387 compression classes, sample description, conditioning, and the measured result. Record elastane content alongside Compression Level, because blends shift the measured value. A result outside light 8-15 mmHg, firm 20-30 mmHg usually points to process drift rather than to the fibre itself.
Typical result
Values near light 8-15 mmHg, firm 20-30 mmHg usually indicate a conforming lot, assuming the fabric matches the sample submitted. Keeping reference values for Compression Level lets suppliers quote without extra sampling rounds. Ask for conditioning details together with RAL-GZ 387 compression classes, since both affect the reading.
Red flags
Missing revision numbers, unusual conditioning, and results without units all signal unreliable data. Working figures for Compression Level normally sit around light 8-15 mmHg, firm 20-30 mmHg in mainstream production. Note RAL-GZ 387 compression classes on the tech pack so nobody tests against an older revision.
Questions to ask
Ask the laboratory for the standard revision and sample description before accepting or rejecting a result. Record elastane content alongside Compression Level, because blends shift the measured value. A result outside light 8-15 mmHg, firm 20-30 mmHg usually points to process drift rather than to the fibre itself.
